What happens when I'm tagging a photo but listening to music at the same time?

Or I run the photo tagging software in a small window and watch a movie (or some porn) instead?

So they can create tags from brain waves, but there's no way to tell what a user is actually focussing on.

Interesting choice of words. Chrome has an "incognito mode". From the blurb shown when you open the browser in that mode:

Pages that you view in this window won't appear in your browser history or search history, and they won't leave other traces, like cookies, on your computer after you close the incognito window. Any files that you download or bookmarks that you create will be preserved, however.

It is my guess that, "some time" after the initial sales rush, they will release a patch that allows offline play - in much the same way some games required a disc in the drive to play initially, then that security requirement was patched out.

At least, that is what I'd do if I were them.

Diablo is an "action rpg". That basically means it's space invaders with character development.

There is no real adventuring - despite the randomized maps, there's very little to explore (because there's very little to find, except more monsters). There's no discovery - the identify system is token and adds nothing to the game. There's no problem solving (apart from figuring out how to blast a bunch of monsters before they blast you) because there's no depth - your options are a) attack, or b) attack.

If you think Diablo is basically a real-time Rogue-like, then you've misunderstood what is so great about Rogue.

I'm holding my breath for the day somebody develops a truly co-operatively multiplayer version. (No, sharing bones files/score tables doesn't count.) I know it will probably mean sacrificing turn-based play, but adding human interactivity into the already complex world(s) of Rogue will be amazing.

Look what happened to music when it was popularised. Or movies. Or television, newspapers, radio... When the general population gains interest in something, the market has a tendency to pander to the lowest common denominator. That hasn't meant no more "hardcore" movies or tunes are being made. In the games industry, we get casual gaming instead of Britney or your feel-good rom-com. There will always be fewer people willing to put in time, effort and thought into their entertainment (note that this is not the same as being "addicted"). These few will always be on the fringe of the market. Further, "hardcore" artists, regardless of their chosen media, will always seek to create with integrity, without compromising their vision for the sake of the mass market.